# Han (weihan) - Update 5

## Summary
This week, I've been working on my project proposal and presentation. I've finalized my project to be post-verkle state expiry where only the values in the bottom nodes are expired, and can be resurrected using a Verkle proof. I’ve dived into the Verkle code repository to familiarise myself with the inner workings of Verkle tree.

## Project Proposal & Presentation
I've completed my project proposal, here's the [link](https://github.com/weiihann/cohort-four/blob/master/projects/post-verkle-state-expiry.md).

Here's the [presentation slides](https://docs.google.com/presentation/d/1XZATMw9cJSyp0xX_ir9Uhkzkm2zcZhAakMR5G9pN1Eo/).

## Verkle Code Deep Dive
I've also started to dive deep into the inner workings of the Verkle Tree on the [this branch](https://github.com/gballet/go-ethereum).

## Daily Updates
To ensure consistency, I post daily updates (on weekdays) on what I did for EPF. Check out my daily updates this week:

[Monday](https://twitter.com/ngweihan_eth/status/1691124815510601729)
[Tuesday](https://twitter.com/ngweihan_eth/status/1691493586007994369)
[Wednesday](https://twitter.com/ngweihan_eth/status/1691849888508874794)
[Thursday](https://twitter.com/ngweihan_eth/status/1692206476511879264)
[Friday](https://twitter.com/ngweihan_eth/status/1692578515840016864)

## Next week's Action Items
- Kick start the design phase for the project
- Read and understand Verkle tree's implementation on Geth
- Setup a Geth node using the Verkle code repository
- Obtain feedbacks from mentors